Virtual reality can be applied in many fields such as education, medical science, the military, and engineering. It allows users to have virtual experiences that are otherwise impossible. The document discusses how VR is being used in these sectors, including making virtual projects in education, virtual surgery simulations in medicine, and vehicle/flight simulations in the military. It also provides background on the history of VR from 1939 to today and discusses recommendations for experiencing VR through videos, smartphones, and Google Cardboard.